A question I get asked a lot. The answer is simple Someone names Randall Broad explained it in the following words.

The answer to your question is probably much different today than it was when I first started, but there used to be an old saying around the martial arts community that I think was quite true.

If one hundred people start in martial arts today, half of them will drop out in the first week (50 left). Half of the remaining will drop out before three months (25 left) and half of the rest before six months (12 left). Half of them will be gone before one year (6 left) and half of them will quit training before 1st degree (3 left). At best three will get to black belt and of those two will quit before 2nd degree.

Remember that in the Japanese mindset everything is a process. A process of perfection. You can be a black belt in 5 years but perfection a daily training. The same with Bible study. You can never say you arrived. Constantly seek to improve in everything that you so.